/*
 * @Author: your name
 * @Date: 2020-05-13 23:09:58
 * @LastEditTime: 2020-05-13 23:37:49
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: \ts\ts_test\basic_type.ts
 */

 let isBool:boolean = false
 let myAge:number = 20
 let myName:string = 'yihu'

 //二进制
 let binaryNumber:number = 0b1111;

 let u:undefined = undefined
 let n:null = null



 let notSure:any = 4
 notSure = "555555555"
 notSure = true

let numberOrstring : number | string = "555"
numberOrstring = 5555
//numberOrstring = true



let arrOfnumbers:number[] = [1,2,3]
//元组()
let uses : [string,number] = ['yihu',28]
